<?php

	//method 1
 	$col = new Zend_Form_Element_Text('col');
    $col->setLabel('Name');
    $col->setValue($name);
    $col->setAttrib('disabled', 'disabled');	    
    $this->_form->addElement($col); 
    
    
    //Method2
    $form->addElement('text', 'username', array(
	    'validators' => array(
	        'alnum',
	        array('regex', false, '/^[a-z]/i')
	    ),
	    'required' => true,
	    'filters'  => array('StringToLower'),
	));
	
	